Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X40
The AirTAC Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X40 is a genuine double-acting MULTI-POSITION (tandem) air cylinder: two piston sections of 40mm and 40mm give 3 controllable stop positions across a 80mm total travel, with a Ø32mm bore, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Stroke 140 mm
- Stroke 240 mm
- Total travel80 mm
- Positions3 stops
- Port sizePT1/8
About the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X40
The SCT32X40X40 is a tie-rod multi-position cylinder that delivers three fixed rod positions—fully retracted, 40 mm, and 80 mm total travel—by pressurising one or both of its tandem piston sections. With a 12 mm diameter rod and a 21 mm adjustable air cushion at each end, it provides smooth deceleration for light automation tasks.
Each 32 mm bore section generates 402 N of push force at 0.5 MPa (563 N at 0.7 MPa), making this genuine AirTAC unit suitable for compact sorting gates or two-depth component placement where a single cylinder with discrete stops replaces multiple actuators.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X40 Technical Specifications
| Model | Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X40 |
|---|---|
| Series | SCT multi-position tie-rod cylinder |
| Bore size | Ø32 mm |
| Stroke 1 / Stroke 2 | 40 / 40 mm |
| Total travel | 80 mm |
| Stop positions | 3 positions |
| Acting type | Double acting (tandem, multi-position) |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke / section | Up to 500 mm standard |
Specifications follow the official AirTAC SCT (multi-position) datasheet. SCT is available in bores 32–100; each of the two sections has a 500 mm max standard stroke (800 mm max). Confirm against the product label before installation. Thread options: PT (standard) / G.
Stop Positions (3)
| Position | Rod extension |
|---|---|
| P0 (retracted) | 0 mm |
| P1 (section 1) | 40 mm |
| P2 (both extended) | 80 mm |
Positions are set by pressurising section 1, section 2, or both. With equal strokes you get 3 distinct positions; with unequal strokes you get 4.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Force is per actuated piston section (single-piston, same as the SC bore): push uses the full bore area, pull subtracts the rod area. Size with a safety margin.
Model Code: Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X40
| SCT | Multi-position (tandem) tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm (SCT range 32–100). |
| ×40 | Stroke 1 (section 1) in mm. |
| ×40 | Stroke 2 (section 2) in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod), SCD (double rod), SCJ (adjustable stroke). SCT mounting: Basic, FA, FB, CA, CB, LB. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X40 Is Used
Two-Way Diverter Gate
The 0, 40, and 80 mm positions allow a single chute gate to direct small packages to one of two lanes, eliminating a second actuator and simplifying controls.
Two-Depth Insertion
Pneumatically drive a probe or pin to a shallow 40 mm depth for one part variant and the full 80 mm depth for another, using the same cylinder and valve setup.
Multi-Stop Part Staging
Stage lightweight components at a mid-point (40 mm) for inspection and then advance to the final 80 mm position for pick-off, all with one compact tandem cylinder.
Is the Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X40 the Right Cylinder?
Choose the SCT32X40X40 when your application needs three repeatable mechanical stops without the complexity of two separate cylinders and external hard stops. If your load requires more thrust, step up to the 40 mm bore SCT, which delivers 628 N per section at 0.5 MPa. For replacement, match the 32 mm bore, both 40 mm strokes, PT port thread, and basic mounting configuration exactly.
Multi-position checklist
- ✓ Need 3 repeatable stops?
- ✓ Section strokes 40 + 40 mm suit your layout?
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Plumb the two sections to the correct valves for each stop.
- check Adjust end cushion screws for smooth stops.
- check Use SCT mounting accessory (FA / FB / CA / CB / LB).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCT32-63 Multi-Position Tandem Air Cylinder SCT32X40X40 FAQ
It provides three distinct mechanical stop positions: 0 mm (fully retracted), 40 mm (first section extended), and 80 mm (both sections extended). Because both strokes are equal at 40 mm, you get three stops, not four.
Yes, if you need three discrete positions along the same axis. The SCT32X40X40 uses one rod line and two piston sections, saving space and eliminating the need to synchronise two separate actuators. It must match the bore, both strokes, and port thread for a direct replacement.
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Related AirTAC SCT Multi-Position Cylinders
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